公开(公告)号：US06771688B1

公开(公告)日：2004-08-03

申请号：US09664646

申请日：2000-09-19

申请人： Jung Ah Lee ,  Steven Andrew Wood ,  Gregory J Wroclawski ,  Woodson Dale Wynn

发明人： Jung Ah Lee ,  Steven Andrew Wood ,  Gregory J Wroclawski ,  Woodson Dale Wynn

IPC分类号： H04L2730

CPC分类号： H04B1/70752 ,  H04B1/70751 ,  H04B1/709

摘要： Known sequences are detected and identified in a fast fading environment using a segmented correlator and FHT (Fast Hadamard Transform) architecture. The incoming sequence of samples or data is segmented into blocks. Each block is individually detected using a correlator/FHT segment. Each sequence identifying output of each correlator/FHT segment is summed with the corresponding output of other correlator/FHT segments. Each sum is compared with a threshold to determine whether a particular sequence has been detected and identified.

摘要翻译： 使用分段相关器和FHT（快速Hadamard变换）架构，在快速衰落环境中检测和识别已知序列。 输入的样本或数据序列被分段成块。 使用相关器/ FHT段单独检测每个块。 识别每个相关器/ FHT段的输出的每个序列与其他相关器/ FHT段的相应输出相加。 将每个和与阈值进行比较，以确定是否已经检测和识别了特定序列。